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English definition of “air traffic control”

air traffic control

noun [U, + sing/pl verb] uk   us  
the activity of managing aircraft from the ground as they take off, fly, and land, or the people who do this: Air traffic control at Heathrow have given us clearance to land in 20 minutes.
air traffic controller
noun [C] uk   us  
an air traffic controllers' strike
(Definition of air traffic control from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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